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| Marshals: Who Is Garrett AKA Double G? Kayce Dutton’s Past Returns in Episode 8. (Credits: Paramount) |
Garrett “Double G” arrives in Marshals like the kind of man who carries unfinished business in every step. Episode 8 of the Paramount Plus series wastes no time showing that this is not just another guest role. Garrett is tied to Kayce Dutton by war, loyalty and the sort of memories that never stay buried. For viewers expecting a quick cameo, the show had other plans.
Created by Spencer Hudnut, Marshals expands the Yellowstone world by placing Kayce in a fresh arena of danger, duty and personal fallout. While he tries to hold onto a quieter life, trouble keeps finding his postcode. Garrett’s entrance only sharpens that tension, dragging Kayce back toward the past he keeps pretending is packed away neatly in a cupboard.
Garrett, known to old friends as Double G, once served as part of an elite Navy SEAL unit called the Four Musketeers alongside Kayce, Pete Calvin, and Roner.
It sounds like the name of a cheerful pub quiz team, but their history is anything but light. The group fractured after Roner’s death, a loss that still hangs over every conversation like smoke in a closed room.
Much of Garrett’s bitterness appears aimed at Pete, who led the squad during that mission. Years later, the blame has not faded. Instead, it has matured into sharp-edged resentment.
Whenever Garrett, Pete and Kayce share space, the room feels one sentence away from disaster. Kayce, naturally, is stuck in the middle, which seems to be one of his favourite life hobbies.
The episode also reveals Garrett’s life after service has been messy, unstable and rough around the edges. There are hints he was discharged under difficult circumstances before drifting through arrests, hardship and long stretches without direction. Rather than present him as a cliché tough man, Marshals gives Garrett bruises beneath the bravado.
His refuge became music. Garrett now works as a country singer and guitarist, using songs where therapy, pride and common sense perhaps failed.
When even music stops soothing the noise in his head, he turns up at Kayce’s door. It is a quiet but effective moment: two damaged men recognising the pain in each other without needing a dramatic speech and swelling violins.
Kayce offers him a place to stay, hoping the ranch might provide the same sense of purpose it gave him. That decision may look generous, but it also risks reopening every wound both men tried to ignore. In true Dutton fashion, peace lasts about five minutes before emotional chaos moves into the spare room.
The man behind Garrett is Riley Green, making his acting debut in a role seemingly built to suit him. Known first as a successful country singer-songwriter, Green steps into scripted television with surprising ease.
Rather than feel like stunt casting, his presence fits the world of Marshals neatly: rugged, understated and carrying enough authenticity to avoid looking like he wandered in from the wrong set.
Green has said his interest in acting grew through conversations with Luke Grimes, who plays Kayce and also understands life as a musician.
He was also inspired by performances across the wider Yellowstone universe, particularly Tim McGraw in 1883. That influence appears to have pushed Green from “maybe one day” to actually doing the thing.
One of the cleverest twists behind the scenes is that Garrett reportedly would not exist without Green. The character was shaped with him in mind, though he still auditioned for the role. Fair play to the production for making him earn it rather than handing him a cowboy hat and calling it a day.
Because Garrett is also a musician, the show smartly uses Green’s real strengths onscreen. His singing and guitar scenes add texture rather than feeling bolted on.
Reports that Garrett performs “My Way” only deepen the symbolism: a man who has lost control trying to reclaim some through song. Subtle? Not exactly. Effective? Very much so.
Fans online have had varied reactions, which usually means the writers did something right. Some viewers praised Garrett as one of the strongest new characters in the series, calling his chemistry with Kayce immediate and believable.
Others said the episode finally gave Kayce emotional material beyond brooding in scenic locations. A few sceptics questioned whether a singer stepping into such a layered role would work, only to admit they were pleasantly surprised after watching.
There is also growing chatter about Garrett returning in future episodes. His unresolved history with Pete, his bond with Kayce and the mystery around what truly happened to Roner create enough material for a much bigger arc. In short, the show would be daft to introduce this much tension and then bin it after two episodes.
Garrett AKA Double G is more than Kayce’s old teammate in Marshals. He is a walking reminder that the past never leaves quietly, no matter how far you drive from it.
And if this is only the start of his story, viewers may want to keep both eyes on Episode 9. Did Garrett steal the series? Is Riley Green the surprise casting win of the season? Say what you think, because the fan debate is only getting louder.